Hi, just took over an Auto MCS JCW 2006 with 43,000 miles in mileage.

Its hard to describe but when i depress the accelerator hard, the counter revs to 3-4k rpm but it seems that the car's gear hasn't quite caught up. then i feel something like a soft thud and the car jerks forward.

Am quite concerned... any advise?

 

1st off, the auto tranny in an 06 MCS is not a CVT, it's a GA6F21WA.

And I was unaware they even had JCW option for the auto transmission equipped MINI's in the 1st Gen.

Checking the level of the transmission fluid would be my first reaction.

 

I think they did have a JCW option for the cooper though..

 

Thanks much. where can you find the code you mentioned? And JCW equipped transmission??

 

I have seen a JCW badged and I think tuned R50 before. A Florida remember had it at Mickey and MINI .

 

I think in 2002-2004 there were no automatic 'S' Coopers, but I've thought I have seen some 'S' and JCW autos in 05-06 range. Correct me if I'm wrong.

 

in 03 they had cooper S's, there was one for sale next to the cooper i bought

 

I own a 2003 MINI Cooper S. I was saying that I didn't think there was an option for an automatic CVT transmission on an "S"

 

torque converter locking up maybe?

 

We are having this exact problem, OP did you ever get this fixed? I already flushed out the trans and still this is happening. Thanks a million!

 

after changing the transmission fluid, the shifts were smooth. But for prolonged driving in stop-start traffic, the problem of jerky shifts comes back again.